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(11)

EP 4 179 311 A1

(12)

(43) Date of publication: 17.05.2023 Bulletin 2023/20 (21) Application number: 21746213.4 (22) Date of filing: 25.06.2021

(51) International Patent Classification (IPC):  G01N 30/34(2006.01) (52) Cooperative Patent Classification (CPC): G01N 30/34; G01N 2030/347 (86) International application number: PCT/US2021/039065 (87) International publication number: WO 2022/010666 (13.01.2022 Gazette 2022/02)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 07.07.2020 US 202063048684 P 22.09.2020 US 202063081524 P (71) Applicant: Waters Technologies Corporation Milford, MA 01757 (US)	(72) Inventor: GRITTI, Fabrice Franklin, Massachusetts 02038 (US) (74) Representative: Forresters IP LLP  Skygarden Erika-Mann-Straße 11 80636 München 80636 München (DE)